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  2. The Voyage of Life - Wikipedia

    en.wikipedia.org/wiki/The_Voyage_of_Life

    The Voyage of Life is a series of four paintings created by the American artist Thomas Cole in 1840 and reproduced with minor alterations in 1842, representing an allegory of the four stages of human life. The paintings, Childhood, Youth, Manhood, and Old Age, depict a voyager who travels in a boat on a river through the mid-19th-century ...

  3. Stages of development - Wikipedia

    en.wikipedia.org/wiki/Stages_of_development

    Tuckman's stages of group development (forming, storming, norming and performing), model of group development was first proposed by Bruce Tuckman in 1965, who maintained that these phases are all necessary and inevitable in order for the team to grow, to face up to challenges, to tackle problems, to find solutions, to plan work, and to deliver ...

  4. Erik Erikson - Wikipedia

    en.wikipedia.org/wiki/Erik_Erikson

    Howard Gardner [ 7] James Marcia. Erik Homburger Erikson (born Erik Salomonsen; 15 June 1902 – 12 May 1994) was an American child psychoanalyst known for his theory on psychosocial development of human beings. He coined the phrase identity crisis .

  5. Developmental stage theories - Wikipedia

    en.wikipedia.org/wiki/Developmental_stage_theories

    Four of these stages stretch from birth through puberty and the final stage continues throughout the remainder of life. [7] Erik Erikson (b.1902) developed a psychosocial developmental theory , which was both influenced and built upon by Freud, which includes four childhood and four adult stages of life that capture the essence of personality ...

  6. Erikson's stages of psychosocial development - Wikipedia

    en.wikipedia.org/wiki/Erikson's_stages_of...

    e. Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with Joan Erikson, [ 1] is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to late adulthood .

  7. Adult development - Wikipedia

    en.wikipedia.org/wiki/Adult_development

    Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1] Biological changes influence psychological and ...

  8. Life-cycle cost analysis - Wikipedia

    en.wikipedia.org/wiki/Life-cycle_cost_analysis

    Life-cycle cost analysis. Life-cycle cost analysis (LCCA) is an economic analysis tool to determine the most cost-effective option to purchase, run, sustain or dispose of an object or process. The method is popular in helping managers determine economic sustainability by figuring out the life cycle of a product or process.

  9. Loevinger's stages of ego development - Wikipedia

    en.wikipedia.org/wiki/Loevinger's_stages_of_ego...

    Loevinger's stages of ego development are proposed by developmental psychologist Jane Loevinger (1918–2008) and conceptualize a theory based on Erik Erikson's psychosocial model and the works of Harry Stack Sullivan (1892–1949) in which "the ego was theorized to mature and evolve through stages across the lifespan as a result of a dynamic interaction between the inner self and the outer ...